True Causes
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Why do parts that passed inspection come back?
A returned part is remade, not investigated
a walkthrough with stand-ins — a demonstration, not a finding · sealed
Judged not to be linked
Parts that pass our inspection fail the customer's
judged not to · 3 yes · 10 no · 1 abstained
New jobs are quoted from the last similar job, not from the drawing
judged not to · 7 yes · 21 no · 1 abstained · cross-group
Maintenance is done when a machine stops
judged not to · 1 yes · 11 no · 2 abstained
First-off inspection is skipped when the job is late
judged not to · 0 yes · 13 no · 1 abstained
Batch traceability ends at the door
judged not to · 0 yes · 13 no · 1 abstained
Setup sheets are in the setter's head, not on paper
judged not to · 1 yes · 12 no · 1 abstained
The customer's returns log and ours do not match
judged not to · 2 yes · 11 no · 1 abstained
Tool wear is judged by ear
judged not to · 0 yes · 12 no · 2 abstained
Parts that pass our inspection fail the customer's
judged not to · 1 yes · 12 no · 1 abstained
Deburring is done by whoever is free
judged not to · 3 yes · 11 no
New jobs are quoted from the last similar job, not from the drawing
judged not to · 3 yes · 10 no · 1 abstained
Maintenance is done when a machine stops
judged not to · 2 yes · 11 no · 1 abstained
First-off inspection is skipped when the job is late
judged not to · 1 yes · 12 no · 1 abstained
Batch traceability ends at the door
judged not to · 1 yes · 13 no
Setup sheets are in the setter's head, not on paper
judged not to · 1 yes · 13 no
The customer's returns log and ours do not match
judged not to · 0 yes · 14 no
Tool wear is judged by ear
judged not to · 2 yes · 12 no
The room certified no link on this claim.
A group’s judgement, not a measurement. Demo room. On the atlas.
↗ cite or embed this claim
Link: https://truecauses.org/c/9458191/6638304-returned-remade-investigated
As data: https://truecauses.org/c/9458191/6638304.json